In the clip, which shows the 34-year-old wrestler trying on wedding dresses, Nikki is brought to tears when thinking about her future with her 41-year-old wrestler/actor fiancé.

"I feel like 2018 is the year of change," she says. "I feel like I'm living in a fake life."

Later, the teaser cuts to an emotional conversation between Nikki and John, where they discuss their wedding.

"I'm just starting to feel so suffocated," Nikki admits, choking back tears.

"I don't think we should go through with this," John declares solemnly.

The minute-long video ends with the troubled couple having dinner together.

"Are you falling out of love with me?" John asks, to which Bella replies, "I just wanna be a mom."

Watch the full teaser below.

In a teaser that debuted on Tuesday (May 15), Nikki admits how lonely she's felt since her engagement. Though the reason for the split has not been confirmed, there's been speculation that the root of the problem was Nikki wanting kids and John not feeling the same way (hence her last line in the teaser).

However, there still may be hope for the couple, who called off their wedding in April.

“I love her. I want to be with her. I want to make her my wife. I want to be the father of her children. I just want us to work," he said of Bella on Kathy Lee and Hoda.

And Bella, too, said she has hope for a reconciliation. "John is such an amazing man. He really is the love of my life,"she toldEntertainment Tonight. "I truly hope one day that we can work it out and get back together. I think there is hope."